Report of Electronics & Communication Engineering
- 1. Report from ISRO Annual Meeting of GRWG/GDWG, Frascati, Italy 4-8 March 2019 Pradeep Thapliyal, Munn Shukla, Nitant Dube Space Applications Centre (ISRO) India
- 2. ISRO Current satellites for Earth Observations 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 YEAR... KALPANA-1 (VHRR) INSAT-3A (VHRR, CCD) INSAT-3D (IMAGER & SOUNDER) INSAT-3DR (IMAGER & SOUNDER) Oceansat-2 (OCM, SCAT, ROSA) G E O L E O INSAT-3DS (IMAGER & SOUNDER) GISAT (MX-VNIR, HyS-VNIR, HyS-SWIR, MX-LWIR) MT (MADRAS, SAPHIR, ScaRaB, ROSA) SARAL (ALTIKA, ARGOS) Resourcesat-2 (LISS-3/4, AWiFS) RISAT-1 (C-SAR) Land & Water Atmosphere & Ocean CARTOSAT-2 (PAN) CARTOSAT-1 (Stereo PAN) Cartographic SCATSAT-1 (Scatterometer) Resourcesat-2A (LISS-3/4, AWiFS) CARTOSAT-2E (PAN) Oceansat-3 (OCM, LWIR, SCAT) CARTOSAT-3 (PAN) NISAR NASA-ISRO CNES-ISRO CNES-ISRO 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 YEAR... NEMO-AM (MADPI)
- 3. • Main contribution to GDWG actions – GSICS Website development – Demo version operational (web page address: https://mosdac.gov.in/gsics - need to be corrected at WMO site) – INSAT-3DR NRTC demo products added in GSICS Website – THREDDS server setup completed (Webex meeting on 23 Jan 2019) – GSICS Plotting tool under development – awaiting RAC products
- 4. • Main contribution to GRWG actions – Intercalibration procedure established for INSAT-3D Imager and Sounder (NRTC) –Demo phase – Intercalibration procedure is operational for INSAT-3DR Imager – INSAT-3D/3DR RAC products - under development – Results from vicarious calibration of INSAT-3D/3DR radiances using in-situ upper air observations over ISRO cal-val site Kavaratti island were analysed. – GEO-GEO inter-comparison of INSAT-3D/3DR and MSG-SEVIRI carried out – INSAT-3D/3DR Visible channel calibration using DCC method is in implementation phase – in collaboration with Dave Doelling, NASA – INSAT-3D/3DR Visible channel calibration using ray-tracing method is in near completion phase.
- 6. ISRO GSICS Plotting Tool (INSAT-3D)
- 7. Issues • Retention of residual biases after GSICS correction – Currently diagnosing the problem – Exploring effect of conversion in radiance unit – Non-linearity in the GSICS correction – exploring various possibility to incorporate the non-linear correction
- 8. Thanks